baber/WOPTO huggingface dataset:
Patent GB-876304-A (GB)
Title: Improvements in or relating to aerials with a variable beam direction
IPC: H01Q15/04
Filed: 1960-02-10
Abstract: 876,304. Aerials. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 10, 1960 [Feb. 13, 1959], No. 4690/60. Class 40(7) The invention relates to an aerial system of variable directivity comprising two spaced coaxial conductive members formed as surfaces of revolution between which energy is fed through a waveguide at a variable point along the peripheral gap between them, the shape and spacing of the members being such that a beam of energy is radiated in a plane at right angles to the axis of revolution at a position diametrically opposite the feed point. Such a system is sometimes known as a "Luneberg lens aerial". One form is shown in Figs. 1 and 2 where the two conductive members 1 and 2 are so shaped that energy from a peripheral feed point 5 travelling through the lens by various paths (such as 7, 8 or 9) produces in-phase radiation on the line 13 to give a collimated beam diametrically opposite the point 5. As shown in Fig. 1 the members 1 and 2 are provided with flared edges 3, 4 round the lens periphery and the waveguide feed is terminated in a wedge-shaped feed unit 18 movable round between these edges and having conductive surfaces spaced from and parallel to them. According to the invention a groove 19, 20 having a depth equal to a quarter of the operating wavelength is formed in the conductive surfaces of the unit 18, the groove extending round the outlet 5, of the guide at a distance of approximately an odd multiple of a quarter wavelength. The groove causes a high impedance to be presented to energy attempting to pass through the gaps between flared edges 3, 4 and unit 18. To further reduce back radiation the outer surfaces of the body 18 beyond the groove may be covered with a layer 21 of lossy material such as graphite.
Patent GB-823856-A (GB)
Title: Continuous casting of metals
Inventor: HOBBS JOHN FRANCIS
IPC: B22D11/10
Filed: 1956-02-15
Abstract: 823,856. Continuous-casting machines. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 15, 1957 [Feb. 15, 1956], No. 4718/56. Class 83 (1). The outlet of a reservoir 1 is separated from the inlet of a continuouscasting mould 3 by a plate 8 having an orifice, whose diameter is between 30 and 95% of the diameter of the mould inlet. The plate may be of asbestos, or steel coated with sodium silicate, or oxidized.
Patent GB-1441907-A (GB)
Title: Tool mounting systems for hand tools
IPC: E21C37/24
Filed: 1975-02-04
Abstract: 1441907 Tool mounting IMPEX-ESSEN VERTRIEB VON WERKZEUGEN GmbH 4 Feb 1975 [8 Feb 1974] 4744/75 Heading B4C The shank of a tool for an electrically, pneumatically or hydraulically driven percussive tool has at its inner end a three rib profile 7<SP>III</SP> with concave longitudinal grooves 7<SP>V</SP> which extend substantially radially at the joins with the tangential surfaces of the ribs, the tool holder being profiled in a corresponding manner. A spring loaded plastics cap 8 is provided to retain the tool axially and is rotatable partially in order to insert or remove the tool. A shank cleaning insert 10 is provided in the cap in order to clean the shank as it moves axially.
Patent GB-1197143-A (GB)
Title: Improved Railway Motor Bogie
IPC: B61F5/02
Filed: 1969-01-29
Abstract: 1,197,143. Railway vehicle undercarriages. GENERAL STEEL INDUSTRIES Inc. 29 Jan., 1969 [8 July, 1968], No. 4808/69. Heading B7L. A railway vehicle has a motor bogie comprising wheels 1 on spaced axles, a cast frame 7, a bolster 25, swivelling about the vertical centre axis of the bogie and supporting the vehicle underframe U on metal-interleaved rubber discs 35 providing more freedom of movement laterally than vertically, and a pair of longitudinally extending links 43, one at each side of the bogie, connected at one end to the bolster ends and at the other to the underframe, the links 43 being inclined upwardly from their bolster connections, and their axes intersecting the vertical transverse centre plane of the bogie at a level substantially lower than the bolster 25. The link axes preferably meet the plane at the level of the rail R, in which case draught forces along the link 43 do not produce unequal loading of the wheels 1.
Patent GB-977888-A (GB)
Title: Improvements in or relating to tapping attachments for machine tools
Inventor: DERBYSHIRE GEORGE CECIL
IPC: B23G1/46
Filed: 1963-02-06
Abstract: 977,888. Couplings and friction clutches. FRANK GUYLEE & SON Ltd. Headings F2C and F2U. [Also in Division B3] A tapping attachment comprises a driving member 10, a driven member 12, and a clutch 24 having adjustable shoes 26 for drivingly connecting the members. Member 10 has a spigot 14 rotatably carried in member 12 by a bearing 16, and tapered flat surfaces 34 which co-operate with shoes 26, so that as the shoes are moved axially the frictional resistance of the lining material 28 on the shoes which engages the bore 30 of member 12, is varied. The shoes are held in engagement with the flats by a spring 38, and they are slidably mounted in a member 36, by screws 44 and T-slots 46. Axial adjustment of member 36 and shoes 26 is effected by a cap 48 screwed on to member 12 at 50. A sliding member 58 is driven by member 12 through four steel balls 64, and a chuck spindle 60 is located in a bore 70 of member 58 by a bush 76. The latter is resilient, and comprises inner and outer metal parts with rubber bonded between them. Member 58 is urged downwardly by a spring 78 which bears against a steel ball 80. In operation, the frictional resistance of clutch 24 is adjusted, and the operator applies pressure to the tool to move member 58 against spring 78, thus providing a degree of float. In a modification, flats 34 are tapered in the opposite direction. In a further modification, the chuck 62 is attached to member 10, and spindle 60 is the driving member.
Patent GB-234543-A (GB)
Title: Improvements in and connected with the ascertaining of the oscillation and stability of ships
IPC: B63B9/00
Filed: 1924-02-26
Abstract: 234,543. Holt, C. F. Feb. 26, 1924. Stability, determining.- The stability of a ship is ascertained by observing the period of the small oscillations which exist or take place when the ship is in dock, particularly under various conditions of load. The inertia of a relatively large mass of water contained in part of the measuring instrument is adapted to serve as the primary means for ascertaining and subsequently indicating and recording these oscillations. The oscillations are magnified by the instrument and a record made by a suitably-operated pen on a chart moved at a known speed. In one form, a relatively large mass of liquid fills a casing 3, Fig. 1, within which is mounted a wheel 1 with internal vanes 2, side enclosing plates 20 and an apertured periphery. This wheel is supported eccentrically by knife edges 22 so as to produce a pendulumlike effect. Adjusting weights 24 working on screws 25 are provided to allow adjustment of balance. A part of the wheel extends out through the neck of the vessel and terminates in a toothed quadrant 13 with which meshes a second quadrant 15 mounted on knife edge pivots 9. The pin 8 operated by the quadrant 15 moves across the clock-driven recording-drum 11. The casing 3 moves with the ship whilst the wheel 1 or the parts associated therewith are maintained substantially at rest owing inter alia to the inertia of the liquid in the container 3. Various modifications of the mechanism for magnifying the oscillations of the ship are described. In one form, the arm 14, Fig. 6 terminates in an off-set arm which is connected to a lever 36 moving with the pen arm 8, by a link 35. In another form, pin-and-slot mechanism is employed. In the construction shown in Fig. 10, the pen is put in and out of action by a cam 40 or by a bell-crank lever 44. In an electrical mode of operating the marker, the arm 14, Fig. 11, is connected to downwardly-projecting conductors 48, designed to dip into mercury cups 49, thus closing circuits in which are electromagnets 50 which attract armatures 51 carried by the pen arm 8. In another electrical arrangement, a current induced in a wire coil 57 fixed to the casing 17 is varied, when the ship oscillates, owing to the movement of the solenoid 56 secured to the arm 14. This induced current, according to the direction of movement of the arm 14, changes the polarity of a solenoid 58 comprising a coil of wire wound round a soft iron wire. As this solenoid is placed between magnets 59, the solenoid is moved from side to side as its polarity changes.
Patent GB-235811-A (GB)
Title: Improvements in finger rings for use in crocheting
IPC: D04B33/00
Filed: 1925-02-21
Abstract: 235,811. Rees, H. R., and Brown, E. H. Feb. 21, 1925. Crochet-work.-A device adapted to be worn on the finger when crocheting to tension the thread &c. comprises a ring 1 carrying on a screw stud 2 attached to the ring a flat disc 3 having slots 7 leading into the body from points on the rim diametrically opposed. The thread 8 passes through these slots and the tension thereon isadjusted by a nut 6 on the stud 2 pressing a flat disc 5 against a convex plate 4 above the disc 3.
Patent GB-635809-A (GB)
Title: Improved means for proportioning a liquid and introducing it to another liquid
IPC: C02F1/68
Filed: 1948-02-19
Abstract: 635,809. Mixing fluids in flow. MORETON ENGINEERING CO., Ltd., and GRIFFITHS, A. Feb. 19, 1948, No. 4898. [Class 86] Apparatus, applicable to a machine for washing drinking glasses, for mixing with water a relatively small proportion of sterilizing liquid, comprises a Venturi tube j through which water flows under its supply pressure and which is connected by a passage k to a glass-walled chamber m into which projects a nozzle o connected via a non-return valve to a sterilizer fluid tank, Fig. 2, not shown. Suction produced in the chamber m by the Venturi tube causes sterilizing fluid to be delivered and to be observed emerging drop by drop through the nozzle o into the chamber from where it passes into the water stream in the Venturi tube. A needle valve q provides an adjustable air inlet to the chamber m via the ports r by which means the suction in the chamber and thus the amount of sterilizer delivered by the nozzle o may be regulated. Specification 479,786, [Group XXIII], is referred to.
Patent GB-818370-A (GB)
Title: Glazed electric resistors and method of producing them
IPC: H01C17/02
Filed: 1958-02-14
Abstract: 818,370. Electric resistances. ROSENTHALISOLATOREN G.m.b.H. Feb. 14, 1958 [Feb. 15, 1957], No. 4909/58. Class 37. A method of producing glazed electrical wire-wound resistors is characterized in that two lead-in wires, each of which is bent at right angles to form a long and short arm, are placed between two slabs pressed from glazing powder so that the arms project therefrom and the resulting unit is then fired. Resistance wire is wound on to this former, and the resistor so formed surrounded by a cover of glazing composition. In the embodiment shown two lead-in wires 2a and 2b are bent at right angles and placed in grooves, Fig. 2, formed between two glaze slabs 5a and 5b so that the long and short arms project as shown in Fig. 1. In order to prevent sagging during firing the slabs are given a non-metallic reinforcement of, for example, putty or cement which is introduced into the longitudinal groove for the lead-in wires, the groove being of larger cross-sectional area than the lead-in wires. The resistance wire 1 is wound on to the former 5a, 5b and the ends terminated on the short arms of the lead-in wires which are of rectangular cross-section. The resistor thus formed is surrounded by the covers 3 and 4 and the whole unit fired to the point of fusion. In an alternative embodiment the resistor is not surrounded by glaze covers, but is instead covered by spraying on, or dipping into, glaze.
Patent GB-174293-A (GB)
Title: Improvements in or relating to machines for inserting lace hooks in leather and other material
IPC: A43D100/10
Filed: 1921-02-11
Abstract: 174,293. Lux, E. Feb. 11, 1921. Setting lacing-hooks; setting-mechanism.-In a machine for setting lacing-hooks, the arm carrying the setting-tool has both oscillatory and reciprocatory motion under the action of a toggle, one arm of which is secured to the main rotary shaft. The arm 10 carrying the setting-tool 20 is pivoted at 13 on ears 14, on a slide 15 working on a guide-piece 16. The hooks slide down a ridge 22 and the end one drops on to a lip 21 on the setting-tool. When the operating-lever 4 is pulled downwards, the main shaft 3 is rotated, rotating the arm 10 on its pivot 13 by means of the toggle formed by the arm 7 of a bell-crank lever 6, 7, and the link 9, until the arm 10 lies against the slide 15. Further downward movement of the lever 4 straightens the toggle and presses forward the arm 10 and slide 15, forcing the hook 25 through the punched leather placed over the anvil 51 and clenching the hook shank. In this position a plate 30 of L-shaped cross-section, attached to the arm 10 by a spring 33, has been pulled up to obturate the hole 23 in the casing 1 through which the hooks drop on to the lip 21 of the setting-tool, preventing hooks from entering while a hoop is being set. Also the notch 40 of a pawl 36 pivoted to the casing at 35, has engaged under the pin 41 on the slide 15. When the lever 4 is released, it travels towards its normal vertical position owing to the action of the spring 5 on the arm 6 of the bellcrank lever fixed to the shaft 3. The arm 10 is first rotated downwards away from the slide, releasing the hook 25, and the arm 6 of the bell-crank lever rocks the pawl 36, releasing it from the pin 41 on the slide. The whole setting-mechanism can then return to the normal position, as shown in Fig. 1. The plate 30 then allows the next hook to fall on to the setting- tool. The slide 15 has a flange 17, Fig. 8, with a recess S, the flange engaging a notch 18 in the setting-tool when the arm 10 has been rotated, holding the hook snugly in the recess S while being set. The anvil 51, Fig. 10, is formed eccentrically on its shaft and is held in a rotatable arm 49 clamped by a screw 4S to a pin 47 in a boss 46 on the casing 1. By rotating both the arm 49 and the anvil 51, the anvil can be accurately centred for setting the hook.
Patent GB-1198161-A (GB)
Title: Lubricating Oils
Inventor: BATCHELOR JOHN
Filed: 1968-01-31
Abstract: 1,198,161. Hydrofinished lubricating oil composition. BRITISH PETROLEUM CO. Ltd. 17 April, 1969 [31 Jan., 1968], No. 4937/68. Heading C5F. A hydrofinished lubricating oil is blended with 0À0001-0À1% by wt. of a mixture of a major proportion of an ester amide of the formula RON(CH 2 CH 2 OOCR) 2 , where R is a C 12- C 24  alkyl group and a minor proportion of a polyethylene of M.W. 500-5000 to prevent haze formation. The proportion of ester amide in the additive mixture may be 80-90% by wt. R is preferably C 19 -C 21  alkyl.
Patent GB-855702-A (GB)
Title: Method for producing a flattened roll of plastically deformable material
IPC: B21C47/00
Filed: 1959-02-13
Abstract: 855,702. Producing flattened rolls of materials. ALUMINUM CO. OF AMERICA. Feb. 13, 1959 [Feb. 19, 1958], No. 5045/59. Class 94(1). A method of producing a flattened roll of plastically deformable material from a cylindrical roll 10, Fig. 3, on a core 14, comprises removing the core 14 from the roll 10, inserting a flexible core 16 which when flattened will contact the innermost curved faces of the roll when flattened, and then flattening the roll and core as in Fig. 5. As shown the core 16 is of glazed or calendered cardboard strip bent to V-shape and of a size such that when flattened as in Fig. 5, its cross-sectional perimeter is equal to or slightly in excess of the internal circumference of the original cylindrical roll 10. The material 10 may be metal foil, plastics, paper or paper-like wrapping materials.
Patent GB-492591-A (GB)
Title: An improved method of forming or shaping grinding or abrasive wheels
IPC: B24B53/08
Filed: 1937-02-22
Abstract: 492,591. Trueing grinding wheels. HORSTMANN, S. A., and HORSTMAN, Ltd. Feb. 22, 1937, Nos. 5212 and 18746. [Classes 60 and 124] A grinding-wheel for use in grinding screwthreads and provided with a number of grooves corresponding to the shape of the thread is formed or dressed by means of a roller having thereon a screw thread of the form desired on the work, the roller being rotated and traversed across the wheel in accordance with the pitch of the thread. The grinding wheel 14 is driven at a peripheral speed approximately the same as that of the forming roller 10. which may be mounted on a lead screw in a quill 11., so arranged that the roller takes the place of the work piece to be ground, or the roller may be mounted as shown at 10<1> on a separate spindle 11<1>; in this case, to avoid inaccuracy due to differences in the lead screws, the wheel 14, formed by an accurate roller on the workcarrying screw, is used to form a roller mounted at 10<1>, this latter roller then being used in subsequent forming operations. The roller may be grooved at 16 to prevent interference due to grit lodging in the thread. Internal grinding wheels also may be formed by the method described above. In a modification, the grooves in the wheel are formed roughly by a diamond tool 20 mounted on a head 22 rotated and traversed, in accordance with the pitch of the grooves, past the wheel, which is rotated at high speed ; the head 22 may be rotated rapidly whilst the diamond is out of contact with the wheel. The roughly formed thread is finished by a roller, as described above, or the roller may be freely mounted on a mandrel, being rotated and traversed by its engagement with the wheel. Specifications 417,771 and 492,592 are referred to.
Patent GB-510553-A (GB)
Title: A hand-operated sharpening or polishing device
IPC: B24D15/06
Filed: 1938-02-19
Abstract: 510,553. Sharpening and polishing. WINEBERG, R. Feb. 19, 1938, No. 5271. [Class 60] A hand-operated sharpening or polishing device for cutlery, darts &c. comprises a plate 1 of metal &c. having its edges inturned to form flanges 2, the plate at its flanged parts being bent back to form a convex or raised flat working face. An abrasive piece 3, for example, of abrasive coated cloth, or a polishing piece, for example, of leather is slid along the plate with its edges engaging under the flanges 2, or in a modified construction, the abrasive &c. piece is held at its edges by an open fronted frame, which along its edges is sprung into the flanges 2. In a further modification, a plate is placed between the plate 1 and the abrasive &c. piece and pressed outwardly by a screw to grip the edges of the piece 3 in the flanges 2. The plate may be formed with a hand-grip 4 and a guard 5.
Patent GB-391943-A (GB)
Title: Improvements relating to automatic weighing machines
IPC: G01G13/00
Filed: 1932-02-23
Abstract: 391,943. Feeding - devices for granular &c. material. SOUTHALL & SMITH, Ltd., SOUTHALL, C., and GWILT, C., Villa Street Works, Hockley, Birmingham. Feb. 23, 1932, No. 5355, [Class 59.] A feeding-mechanism for delivering gramophone needles, nails, tacks, sugar lumps, or other small articles to an automatic weighing- machine comprises an inclined fixed delivery tube a, Fig. 1, a receptacle formed by an inclined fixed plate b at the upper end of the tube, a correspondingly inclined rotary member d, a flange c on the rotary member (or a fixed flange surrounding the rotary member), and recesses or projections h in association with the rotary member for carrying articles from a mass at the lower part of the receptacle to the upper part where they can fall into a channel i at the upper end of the tube. The gramophone needles &c. in a hopper g are transferred by a rotating arm h to the rotating receptacle and after passing through the tube a fall into the weigh pan l. A pivoted feed gate m electrically or otherwise controlled by the weighbeam closes when the required weight of needles has passed into the weigh pan. In a modified arrangement, Fig. 4, the parts q, b are stationary and the intermediate part d rotates. The part d carries V-shaped projections p which pick up the needles and deliver them down the channel i and tube a.
Patent GB-1400308-A (GB)
Title: Traffic hold-up detector circuits
IPC: G01S17/88
Filed: 1973-02-02
Abstract: 1400308 Radar SOC DE FABRICATION D'INSTRUMENTS DE MESURE 2 Feb 1973 [12 Sept 1972] 2471/72 Heading H4D The duration of a traffic hold-up is determined by a Doppler radar monitoring an area of road corresponding to one vehicle and producing an output Doppler frequency speed signal which sets a bi-stable 7 when the monitored speed is less than a first threshold value and resets said bi-stable 7 when the monitored speed exceeds a second threshold value greater than said first threshold value. As shown the Doppler signal from the radar is converted at 1 into a corresponding square wave and applied to a J-K flip-flop divider 2 producing push-pull outputs Q and Q, the duration of each half cycle of said outputs being inversely proportional to the speed of the vehicle being monitored. The output Q is applied to the set input S of a bi-stable 3 and each negative-going edge of the output Q triggers a monostable 4 to produce a positive output pulse of duration corresponding to said first threshold speed, said pulse being applied to the reset input R of the bi-stable 3 which is thus set only if the monitored speed exceeds said first threshold. The outputs Q and Q of the bi-stable 3 are coupled respectively to the set and reset inputs S and R of the bi-stable 7 via respective delays (counters) 5 and 6 which reduce the effects of unwanted signals. Thus the bi-stable 7 is set and reset in accordance with the corresponding states of bi-stable 3 and when bi-stable 7 is set its output (i) energizes a relay 8 to start a counter (11), Fig. 2 (not shown), and (ii) biases the monostable 4 to reduce the duration of subsequent output pulses therefrom to a value corresponding to said second threshold speed so that the bi-stable 3 (and thence bi-stable 7) will be reset only when the monitored speed exceeds said second threshold.